Hermetic seal for bottles



Jan. 2, 1934. no 1,942,102

HERMETIC SEAL FOR BOTTLES Filed Feb. 25. 1932 3 mlyllul Patented Jan. 2, 1934 UNITED STATES HERMETIC SEAL FOR BOTTLES Naoichi Ito, Imazu-Cho, Muko-Gun, Hyogo-Ken, Japan, assignor to Chisada Ohta, Kita-Ku,

Osaka, Japan Application February 25, 1932, Serial No. 595,162, and in Japan March 2, 1931 1 Claim. (Cl. v 215-39) The invention relates to improvements in closures of the double-closure type, or closures having, in addition to the ordinary plug, such as, cork, a secondary device for insuring a complete seal of the mouths of bottles; and the object of this improvement is to provide a novel type of closure formed broadly of a cap-shaped metal structure, having a cylindrically extended flange to be attached securely to the neck of the bottle. The top of the cap-shaped metal structure may be slightly embossed and under certain circumstances bored or cut out round in the centre leaving a disc shaped opening, while the cylindrically extended flange or more particularly the cylindrical body is provided with two horizontal linear projections or embossments, upper and lower, respectively, encircling the cylindrical body in annular form, and with a number of vertical or upright projections or embossments formed between the horizontal embossments at certain intervals.

Closures of the double-closure type have been proposed having a cork plug fitted with an encircling brim to rest upon, together with a washer of suitable material, on the top of the mouth of the bottle, while the body of the plug is placed in the neck of the bottle. To insure a double closure, the mouth of the bottle wherein the bottle of the plug is fitted is crowned with a metal cap having an extended flange provided with corrugations by means of which the metal cap is to be secured to the mouth of the bottle.x

With the closures of the double-closure type referred to, the common drawback is the fact that the metal cap cannot be secured to the bottle neck with satisfactory tightness. It appears that the defects are due, partly, to the fact that the thickness of the brim referred to, as well as the height to which the body of the plug protrudes through the brim, are indefinite, and, partly, to the fact that the corrugated flange of the metal cap does not bend down deep into the encircling groove or recess provided on the bottle neck. As a result, the closures cannot withstand the expanding forces arising in bottled liquids of certain kinds and are from time to time removed spontaneously from the mouths of the bottles.

Furthermore, closures having the described drawbacks are at all times subject to removal surreptitiously, since they are capable of being detached from and attached to the mouths of the bottles with ease and with simple tools. In fact, brewers and manufacturers often complain of their bottles being opened without difficulty and the original liquids being replaced by drinks bottle and'becomes attached tightly to the surfaceof the bottle-neck, while its corrugated portion is closely gathered and deeply set in the groove or recess just below the annular projection, aforesaid. The lowermost portion or edge of the cylindrical body does not permit of the 7 I access of any means of grasping, such as extractors, by reason of its tight attachment to the surface of the bottle-neck, and therefore the invention proposes to provide a lug at the lower edge of the cylindrical body, so that by pulling 7 the lug the cap-shaped structure'may be broken and stripped from the mouth of the bottle.

The present invention comprises, as a modification, a construction in which the top of the cap-shaped structure has on its inside a cork disc 30 to surmount the edge of the mouth of the bottle and thereby insure a perfect joint with the bottlemouth. It is to be noted that this type of construction does not necessitate the use of plugs as stated.

The invention is further described with reference to the accompanying drawing, in which:

Fig. 1 is a perspective view of the closure in which the top of the cap-shaped metal structure has an opening;

Fig. 2 is an elevational, partly sectional, view of the stopper, shown placed in position on the mouth of a bottle;

Fig. 3 is an elevational view of another form of the closure which has no openingin the top of the cap-shaped metal structure and is adapted to cap the plug inserted in the mouth of a bottle;

Fig. 4 is an elevational, partly sectional, view of the closure illustrated in Fig. 3, shown placed in position on the mouth of a bottle;

Fig. 5 is an elevational view of a modified form of the closure, having a cork disc on the inside of the cap-shaped metal structure; and

Fig. 6 is an elevational view of the closure of Fig. 5, shown placed in position on the mouth of 10." a bottle and with a part thereof removed.

Similar numerals denote similar parts throughout the several views.

The closure consists broadly of a cap-shaped metal structure having a cylindrically extended ll! flange or cylindrical body 1. About the middle portion of the cylindrical body there are formed two annular projections or embossments 2 and 3, horizontally encircling the cylindrical body and constituting upper and lower parallel embossments. Between these horizontal projections 2 and 3, there are provided a number of short linear projections 4, embossed vertically and at certain intervals like so many corrugations. Beneath the lower horizontal annular embossment 3 extends the lowermost portion 1' of the cylindrical body, from which depends 9. lug '7. The top 6 of the cap-shaped structure is normally cut out round leaving a disc-shaped opening 6, as shown in Fig. 1, in order that the head of the plug a may project through the opening so that the marginal portion of the top 6' surrounding the opening can rest on a brim fitted around the plug. Under certain circumstances, the top 6' of the cap-shaped structure may not be bored, but in turn can be used in the form of. a solid disc (see Figs. 3 and 4), while in the latter case it is necessary that the disc-shaped top be properly embossed so as to rest on the head of the plug. It is to be noted that the plug a is protected by a metal covering m which not only extends over the head of' the plug but extends down to the lower edge of the brim fitted around the plug, thereby securing the brim to the plug proper.

To attach the closure to the mouth of a bottle, it is necessary to place the upper horizontal annular embossment 2 of the cylindrical body in register with the glass projection b around the mouth of the bottle. When compressed by a machine, such as is used in connection with crown corks", the annular embossment 2 is stretched out, causing recesses 0 between the vertical linear projections 4 to fall deeper into the interior of the groove just beneath the glass projection b on the bottle neck. The contracting of the recessed portion 0 takes place by reason of the novel arrangements of the vertical and horizontal em-.

bossments as described. Therefore, in spite of the pressure exerted on the upper horizontal embossment 2, the recesses 0 do not travel downwards along the surface of the bottle-neck, but remain in the interior of the groove. The compression of the embossed portion or zone causes the lowermost part or edge of the cylindrical body to become attached securely to the surface of the bottle-neck. The even and tight attachment of the lower edge to the bottle-neck prevents any tools of ordinary description from taking hold of the closure with a view to removing same from the bottle. To provide for the removal of the closure, the lower edge 1' of the cylindrical body is provided with a lug 7 so that by pulling the lug one can strip the cap from the bottle.

Figs. 5 and 6 illustrate a modified form of the closure, in which the top of the cap-shaped metal structure, which has no opening but is embossed, is lined with a disc of proper material, such as cork, and thereby adapted to. rest on the mouth of the bottle, thus afiording by itself a means of closure. Obviously, in this form of the closure the plug a is dispensed with.

I claim:

A closure for bottles of the type having an annular groove in the neck below the mouth, consisting of a cap shaped metal structure adapted to seat in the mouth of a bottle, and having a cylindrically extended flange comprising two annular, respectively, upper and lower embossments, horizontally encircling the middle portion of the cylindrically extended flange, in parallel relation and a number of vertically disposed linear embossments formed between the horizontal embossments, whereby, on the compression of the uppermost horizontal embossment, in applying the closure, the portion of the flange between the vertical embossments will be forced into the annular groove of the bottle, and thereby secure the closure tightly, to the neck of the bottle.

NAOICHI ITO. 

